Environment

After studying various species earlier this month, some scientists now say they understand the origin of animal behavior during solar eclipses.

Fifteen years after the EPA said greenhouse gasses are a danger to public health, the agency finalized rules to limit climate-warming pollution from existing coal and new gas power plants.

The talks in Canada are not going well,and scientists and civil society groups say the U.S. is largely to blame.

Another huge patch of seaweed from the Sargasso Sea is floating towards Caribbean and South Florida beaches. Scientists are trying to predict where and when it will reach the shore.